joshelser commented on a change in pull request #1138: HBASE-22827 Expose
multi-region merge in shell and Admin API
URL: https://github.com/apache/hbase/pull/1138#discussion_r379034894
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File path: hbase-shell/src/main/ruby/shell/commands/merge_region.rb
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@@ -31,18 +31,42 @@ def help
TestTable,0094429456,1289497600452.527db22f95c8a9e0116f0cc13c680396. then
the encoded region name portion is 527db22f95c8a9e0116f0cc13c680396
+You can either pass the list of regions as comma separated values or as an
+array of regions as shown:
+
Examples:
hbase> merge_region 'FULL_REGIONNAME', 'FULL_REGIONNAME'
- hbase> merge_region 'FULL_REGIONNAME', 'FULL_REGIONNAME', true
+ hbase> merge_region 'FULL_REGIONNAME', 'FULL_REGIONNAME', 'FULL_REGIONNAME',
...
+ hbase> merge_region 'FULL_REGIONNAME', 'FULL_REGIONNAME', 'FULL_REGIONNAME',
..., true
+
+ hbase> merge_region ['FULL_REGIONNAME', 'FULL_REGIONNAME']
+ hbase> merge_region ['FULL_REGIONNAME', 'FULL_REGIONNAME',
'FULL_REGIONNAME', ...]
+ hbase> merge_region ['FULL_REGIONNAME', 'FULL_REGIONNAME',
'FULL_REGIONNAME', ..., true]
hbase> merge_region 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME'
- hbase> merge_region 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME', true
+ hbase> merge_region 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME',
'ENCODED_REGIONNAME', ...
+ hbase> merge_region 'ENCODED_REGIONNAME', 'ENCODED_REGIONNAME',
'ENCODED_REGIONNAME', ..., true
+
+ hbase> merge_region ['ENCODED_REGIONNAME', 'ENCODED_REGIONNAME']
+ hbase> merge_region ['ENCODED_REGIONNAME', 'ENCODED_REGIONNAME',
'ENCODED_REGIONNAME', ...]
+ hbase> merge_region ['ENCODED_REGIONNAME', 'ENCODED_REGIONNAME',
'ENCODED_REGIONNAME', ..., true]
EOF
end
- def command(region_a_name, region_b_name, force = 'false')
- admin.merge_region(region_a_name, region_b_name, force)
+ def command(*args)
+ args = args.flatten.compact
+ args_len = args.length
+ raise(ArgumentError, 'Must pass atleast 2 regions to merge') unless
args_len > 1
Review comment:
nit: "at least"
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